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398 - ATPL Question Bank in English - An aircraft crosses a straight, approximately geostrophic jet at the level of its vertical wind-speed maximum. Despite core winds of 120 kt, the temperature changes little across the jet. Which statement is correct?

Question 398 - Meteorology - ATPL - Airline Transport Pilot Licence

This is compatible with the jet-core level, where the vertical wind shear and the associated cross-jet temperature gradient can be small.
This phenomenon does not surprise you at all, since normally no large temperature differences are possible at these heights.
Since the result of such readings seems impossible, you will have the instruments tested after landing.
You assume the front associated with the jet stream to be very weak with practically no temperature difference between the two air masses.

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